Many rumours are going around about Metamizole; most of them are full of fear of potential side effects. Some countries like Ireland and GB have banned this drug due to the rare side effect of agranulocytosis. A fact is too that many other countries like Switzerland continue to use Metamizole on a regular basis and find low incidence rates of 0.46-1.63 cases per million person-days of use (2006-2012).
Regarding serious side effects associated with other analgesics used (e.g. acute liver failure with Paracetamol, renal failure with NSAID) it is difficult to understand why Metamizole needs to be banned when the others are available over the counter.
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